内燃机缺少机油是造成烧瓦的主要原因。但是有时油底壳内不缺机油而出现烧瓦,除了油道堵塞之外,内部泄漏也是一个重要原因。 1.机油泵泄漏 当转子式机油泵的内外转子啮合间隙,外转子与泵体的配合间隙超过0.25mm时,内外转子形成的四个空腔密封不良,产生内漏,使机油压力降低,因而容易烧瓦。 2.主轴瓦泄漏 有一台S195柴油机,更换主轴瓦后仅工作2～3小时就烧瓦,而且连续发生 The lack of oil in the internal combustion engine is the main reason for burning the tile. But sometimes there is no shortage of oil in the oil pan and the occurrence of bushings, in addition to blockage of oil, the internal leakage is also an important reason. 1. Oil pump leakage When the internal and external rotor rotor oil pump meshing gap, the outer rotor and the pump body with the clearance of more than 0.25mm, the inner and outer rotor cavity formed four poor seal, resulting in leakage, so that the oil pressure decreases, and thus Easy to burn. 2. The main bearing leakage of a S195 diesel engine, replace the main bearing after only work 2 to 3 hours on the tile, and continuous occurrence